Last updated: June 24, 2025
In December, the average temperature in West Grove, United States hovers around 4°C (40°F), with daily extremes ranging from a chilly -11°C (13°F) to a mild 18°C (65°F). Expect 102 mm (4.0 in) of precipitation spread over about 9 days, and prepare for a high average humidity of 84%. Whether you're bundling up or planning indoor activities, be ready for the unique weather this month brings!
In December in West Grove, the average temperature is 4°C (40°F). Maximum can reach 18°C (65°F) and minimum can be as low as -11°C (13°F). Be prepared for a wide range of temperatures when traveling, and pack accordingly for both warmth and chilly conditions.
In West Grove in December, the total precipitation amount is 102 mm (4.0 in) over a span of 9 days.
In West Grove in December, humidity is 84%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry while traveling.
In West Grove in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in West Grove, you can check the information here.
UV Risk Categories
Weather in West Grove varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in West Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 66 mm (2.6 inches) | 84% | moderate |
| February Weather | 4°C (39°F) | 104 mm (4.1 inches) | 83% | moderate |
| March Weather | 7°C (44°F) | 104 mm (4.1 inches) | 83% | high |
| April Weather | 13°C (55°F) | 107 mm (4.2 inches) | 81% | very high |
| May Weather | 18°C (64°F) | 136 mm (5.4 inches) | 78% | very high |
| June Weather | 23°C (74°F) | 113 mm (4.5 inches) | 79% | very high |
| July Weather | 26°C (79°F) | 137 mm (5.4 inches) | 74% | very high |
| August Weather | 25°C (77°F) | 137 mm (5.4 inches) | 72% | very high |
| September Weather | 21°C (71°F) | 105 mm (4.1 inches) | 75% | very high |
| October Weather | 16°C (61°F) | 106 mm (4.2 inches) | 81% | high |
| November Weather | 8°C (47°F) | 85 mm (3.3 inches) | 85% | moderate |
| December Weather | 4°C (40°F) | 102 mm (4.0 inches) | 84% | moderate |